Identification and Expression Analysis of SBP Transcription Factor in Fox-tail Millet
In order to clarify the SBP gene family members,evolution and biological function of foxtail millet,by constructing a hidden Markov model and build a local database,the SBP gene family members containing SBP do-mains are scanned in the foxtail millet whole genome database,and the chromosome location,phyletic evolution,gene structure,conservative motif and tissue expression pattern have been analyzed.20 SBP gene family members were identified from foxtail millet whole genome database and distributed unevenly on nine chromosomes;phylo-genetic tree is divided into six subgroups:Group Ⅰ,Group Ⅱ,Group Ⅲ,Group Ⅳ,Group Ⅴ and Group Ⅵ;gene structures and conservative motif of SBP genes were similar in the foxtail millet which possessed closely genetic relationship,all of the foxtail millet SBP proteins contained motif 1 and motif 2,and the number of introns in most millet SBP genes ranged from 1 to 4.The SBP genes were tissue-specific expressed in foxtail millet and similar ex-pression pattern genes were clustered.The similar expression pattern genes were clustered together.This study pre-liminarily clarified the classification,evolutionary relationship,structural characteristics and tissue expression pat-tern of SBP transcription factor in foxtail millet.The results provides a basis for further studying the phylogenetic and biological functions of millet SBP transcription factors,and also provides a scientific basis for the cultivation of excellent millet germplasm resources.
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